Which cybersecurity measure was first widely adopted by major sports retailers following a series of high-profile data breaches in 2018?

In today's digital age, sports retailers face unique cybersecurity challenges as they collect massive amounts of customer data through loyalty programs, online purchases, and in-store technologies. Test your knowledge about how major sports retailers protect their customers' information and their digital infrastructure against evolving cyber threats.

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Tokenization of payment data
Blockchain-based inventory tracking
Biometric authentication for staff access
AI-powered fraud detection systems